Aprilaire 4231 Replacement Orifice, For Use With Model 400, 400A, 400M, 500, 500A, 500M, 550, 550A, 558, 560, 560A, 568, 600, 600A and 600M Humidifier, 3 gph, Nylon, Yellow

APRILAIRE 4231 YELLOW ORIFICE (12pc/pk) SOLD AS PACK

Humidifier Accessories & Parts
Brand: Aprilaire logo
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Aprilaire 4231 Replacement Orifice, For Use With Model 400, 400A, 400M, 500, 500A, 500M, 550, 550A, 558, 560, 560A, 568, 600, 600A and 600M Humidifier, 3 gph, Nylon, Yellow

268548 MFG #: 4231 Product ID:268548
Famous Supply
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  • Dimensions: 11/64 in OD
  • Suitable For Use With: Model 400, 400A, 400M, 500, 500A, 500M, 550, 550A, 558, 560, 560A, 568, 600, 600A and 600M Humidifier
  • Specifications: 3
  • Material: Nylon
  • Color: Yellow
Aprilaire 4231 yellow orifices are the tiny nylon components which, accurately meter the flow of water into your humidifier. They allow a specific amount of water to go into the humidifier, unique to your model humidifier. Used in Models 400, 400A, 400M, 500, 500A, 500M, 550, 550A, 558, 560, 560A, 568, 600, 600A, and 600M.